>> Mathematical logic is not all of logic, but it is logic, not>> mathematics.

> To which I have repeatedly asked for a justification. Conversely, I said > and sparsely justified that logic uses mathematical logic, which is an > applied mathematics: why not?

> Julio

Other types of logic certainly use mathematical logic, and may often use more of mathematics. For example, my paper on rational decision making in _Statistics and Decisions_ 1987uses probability and arguments about functionals. Rationaldecision making is part of logic, inductive logic.

-- This address is for information only. I do not claim that these viewsare those of the Statistics Department or of Purdue University.Herman Rubin, Department of Statistics, Purdue Universityhrubin@stat.purdue.edu Phone: (765)494-6054 FAX: (765)494-0558